After the incisor has been loosened by trauma, it is important to visit the maxillofacial surgeon immediately for periodontal splinting or fibrous banding so that the tooth can be fully secured later. However, it is important to take X-rays beforehand to determine whether the root is intact and whether it has been fractured. If the root fracture is within the apical 1/3 of the root, no treatment is required. If the fracture is in the middle 1/3 of the root or the upper 1/3 of the root, the tooth may need to be extracted and then restored three months later. After trauma to the tooth, it is a slow process of nerve necrosis, which is likely to occur after 1-2 years.